Anthropometric measurements were performed on the teeth, dental arch and mandible. Parameters for these three categories were compared by means of canonical analysis in order to understand the morphological relationships existing among them. The sagittally projected length of the mandible had a significant role in the correlation between the size of the teeth and the length of the dental arch, ...

Our purpose was to determine in 20 unilateral cleft lip and alveolus subjects characteristics of the maxillary permanent teeth and maxillary arch development. Clinical and radiographic examinations have been carried out to identify congenitally missing teeth and sagittal skeletal patterns. Study cast assessment was undertaken to evaluate mesiodistal widths of individual teeth, intercanine and i...

Although the existence of a relationship between crown size and body size has previously been questioned 'S. M. GARN, and A. B. LEWIS, Amer Anthrop 60:894-880, 1958; H. A. BAILIT and J. S. FRIEDLAENDER, Amer Anthrop 68:665672, 1966), recent studies show that there are systematic, positive, but low-order, correlations between crown size and various body dimensions (R. FILIPSSON and L. GOLDSON, A...

BACKGROUND The aim of this study was to investigate possible links between competitive swimming during the growth phase and the development of the dentoalveolar arches. METHODS The study sample included 100 swimmers and a control group of 100 age-matched non-swimmers who had never practised swimming or related sports. Subjects who had had previous orthodontic treatment were excluded. Overjet,...

The purpose of this study was to establish tooth width and arch dimensions in normal and malocclusion samples and to compare tooth width and arch dimensions between males and females in normal and malocclusion samples. A total of 120 pairs of orthodontic study casts were included in the study. An electronic digital caliper was used for the measurements. Descriptive statistics and the t-test wer...

STATEMENT OF PROBLEM Impressions are made using high-viscosity putty vinyl polysiloxane impression materials in conjunction with disposable plastic stock trays. The impression materials have been shown to be dimensionally stable. However, it remains unclear if the disposable plastic stock trays are rigid enough to resist deformation thus yielding potentially unreliable results. PURPOSE This s...

BACKGROUND Both maxillary protraction and rapid expansion are recommended for patients with cleft palate and alveolus. The aim of the study is to establish a three-dimensional finite element model of the craniomaxillary complex with unilateral cleft palate and alveolus to simulate maxillary protraction with and without rapid maxillary expansion. The study also investigates the deformation of th...

OBJECTIVES This study aimed to quantify the patterns of shape variability and the extent and patterns of shape covariation between the upper and lower dental arch in an orthodontic population. METHODS Dental casts of 133 white subjects (61 males, 72 females; ages 10.6-26.6) were scanned and digitized in three dimensions. Landmarks were placed on the incisal margins and on the cusps of canines...